한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제42권6호
  • /
  • Pages.633-641
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  • 2009
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  • 0374-8111(pISSN)
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  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
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동해 임연수어, Pleurogrammus azonus (Jordan and Metz)의 성숙과 산란

Maturity and Spawning of the Atka Mackerel, Pleurogrammus azonus (Jordan and Metz) in the East Sea

  • 이성일 (국립수산과학원 동해수산연구소 자원환경과) ;
  • 양재형 (국립수산과학원 동해수산연구소 자원환경과) ;
  • 윤상철 (국립수산과학원 동해수산연구소 자원환경과) ;
  • 전영열 (국립수산과학원 동해수산연구소 자원환경과) ;
  • 김종빈 (국립수산과학원 동해수산연구소 자원환경과) ;
  • 차형기 (국립수산과학원 자원연구과) ;
  • 장대수 (국립수산과학원 자원연구과) ;
  • 김재원 (강원도립대학 해양생명과학과)
  • Lee, Sung-Il (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute, NFRDI) ;
  • Yang, Jae-Hyeong (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute, NFRDI) ;
  • Yoon, Sang-Chul (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute, NFRDI) ;
  • Chun, Young-Yull (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute, NFRDI) ;
  • Kim, Jong-Bin (Fisheries Resources and Environment Division, East Sea Fisheries Research Institute, NFRDI) ;
  • Cha, Hyung-Kee (Fisheries Resources Research Division, NFRDI) ;
  • Chang, Dae-Soo (Fisheries Resources Research Division, NFRDI) ;
  • Kim, Jae-Won (Marine Life-Science, Gangwon Provincial College)
  • 발행 : 2009.12.31
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초록

Maturity and spawning of the atka mackerel, Pleurogrammus azonus, was investigated based on the samples collected by gill net and set net in the East Sea from January 2006 to March 2009. Gonadosomatic index (GSI) began to increase in October, and reached a maximum between November and December. After spawning GSI began to decrease from January. The spawning period was from October to January, and main spawning period was from November to December. Annual reproductive cycles of this species could be divided into five successive stages in females; early growing stage (June), late growing stage (July to August), mature stage (September to October), ripe and spent stage (November to January), and recovery and resting stage (January to May). Males showed four successive stages: growing stage (June to August), mature stage (September to October), ripe and spent stage (October to December), and recovery and resting stage (January to May). P. azonus could be one of polycyclic species spawning two times or more during one spawning season. Number of total and mature eggs in the fecundity were proportional to fork length. The fork length at 50% group maturity was estimated to be 26.9 cm.

키워드

참고문헌

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피인용 문헌

  1. Age and growth of the Okhotsk atka mackerel, Pleurogrammus azonus in the coastal of Gangwon-do, East Sea vol.54, pp.1, 2018, https://doi.org/10.3796/KSFOT.2018.54.1.054